package com.fang.config.security;

import com.alibaba.fastjson.JSON;
import com.fang.common.wrapper.ResponseWrapper;
import org.springframework.security.core.AuthenticationException;
import org.springframework.security.web.AuthenticationEntryPoint;
import org.springframework.stereotype.Component;

import javax.servlet.ServletException;
import javax.servlet.ServletOutputStream;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import java.io.IOException;
import java.nio.charset.StandardCharsets;

/**
 * 用户认证失败异常处理
 * @author Fang Ruichuan
 * @date 2022-09-01 22:26
 */
@Component
public class JwtAuthenticationEntryPoint implements AuthenticationEntryPoint {

    @Override
    public void commence(HttpServletRequest request, HttpServletResponse response, AuthenticationException authException) throws IOException, ServletException {
        response.setContentType("application/json;charset=UTF-8");
        ServletOutputStream outputStream = response.getOutputStream();
        outputStream.write(JSON.toJSONString(ResponseWrapper.fail("请先登录"))
                .getBytes(StandardCharsets.UTF_8));
        outputStream.flush();
        outputStream.close();
    }
}
